Session Table Problem - Windows 8?

[eluser]ByteImpact[/eluser]
I am having problem with CI session library. My website is working fine all the browsers of windows 7 but for some unknown reason the shopping cart and the login is not working on windows 8.

I have configured the ci_session with the database. When ever i login or add something to the shopping cart from windows 7 a single entry is made in the ci_session database but for some unknown reason whenever i try to login or use shopping cart two or at times three entries are made in the ci_session DB, with one containing valid data the rest containing no user data. As you can see in the file attached.

I am guessing for this reason i am unable to login. if i dont use the database with session then everything works normally.

Kindly help!